Table of Contents
Advertisement
L2TP Network Server
Feature History for LNS
Cisco IOS Release
12.2(4)BZ1
12.3(7)XI1
12.2(28)SB
Restrictions for the LNS
To function as a LNS, the Cisco 10000 series router has the following restrictions:
•
•
Prerequisites for LNS
To function as an LNS, the Cisco 10000 series router has the following requirements:
•
Note
Cisco 10000 Series Router Software Configuration Guide
5-28
Chapter 5
Description
This feature was introduced on the Cisco 10000 series
router.
This feature was integrated into Cisco IOS Release
12.3(7)XI1.
This feature was integrated into Cisco IOS Release
12.2(28)SB.
The Cisco 10000 series router does not support the configuration of L2TP tunnels over the
management Fast Ethernet interface. Do not set up L2TP tunnels over this interface.
In Cisco IOS Release 12.3(7)XI1, the output rate limited traffic on an L2TP VAI can be lower than
than in previous releases due to increases in the overhead included in the policed bps rate.
The configured police bps rate when applied to an L2TP virtual access interface includes the
following 40 bytes of per packet overhead:
L2TP (8 bytes)
–
PPP (4 bytes)
–
–
Outer IP (20 bytes)
–
UDP (8 bytes)
Before you configure RADIUS tunnel accounting or authentication, you must first:
Enable AAA on the LNS and the LAC by using the aaa new-model global configuration
–
command. For more information, see the "AAA Overview" chapter in the Cisco IOS Security
Configuration Guide, Release 12.2.
Configure the LNS and LAC to communicate with the RADIUS server. For more information,
–
see the
"Configuring the LAC to Communicate with the RADIUS Server" section on page 5-11
and see the "Configuring RADIUS" chapter in the Cisco IOS Security Configuration Guide,
Release 12.2.
For more information, see the "Configuring Accounting," "Configuring Authentication," and
"Configuring RADIUS" chapters in the Cisco IOS Security Configuration Guide, Release 12.2.
Configuring the Layer 2 Tunnel Protocol Access Concentrator and Network Server
Required PRE
PRE1
PRE2
PRE2
OL-2226-23
Advertisement
Table of Contents
Troubleshooting
